The HAMMER hybrid!

Harness the power of precision mixtures of pressurized flammable vapor. Safety first! These are advanced potato guns - not for the beginner.
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spudthug
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Mon Jun 11, 2007 5:39 pm

this is my first and newest hybrid!! it took about a month to build and to get the stun gun in the mail. i tapped holes for the propane meter and sprak plugs at my dads shop.

Specs--

1. huge ass 7"x19" fire extinguisher chamber

2. 1"x72" copper barrel

3. 1 peice propane meter (without ball valves, nipples, and reducers)

4. magnetic propane holder.

5. custom paint job (hammered black)

6. stun gun ignition

7. 2 spark gaps (2 spark plugs wired in a series.)

8. 1 1/4 union (valve)

ENJOY!!!
Attachments
THE HAMMER
THE HAMMER
gun without barrel
gun without barrel
close up of chamber
close up of chamber
propane meter
propane meter
ignition system
ignition system
an assortment of ammunition and burst discs
an assortment of ammunition and burst discs
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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hi
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Mon Jun 11, 2007 5:42 pm

nice, have you shot it yet? what mix do you shoot at?

also, how are the spark plugs set up?


i need to get around to mine someday, its just sitting there (sigh)
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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mopherman
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Mon Jun 11, 2007 5:42 pm

wow, that looks amazing! how high have you taken it? is that union sch80 or metal?
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spudthug
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Mon Jun 11, 2007 5:49 pm

nice, have you shot it yet?
only combustion..im at my dads and i forgot my air compressor
what mix do you shoot at?
i plan on taking it to 5x maybe 6x but only after many tests at 5x and before 5x i will test alot at 3x and 4x
also, how are the spark plugs set up?
they are in a series.. the stun gun wired to the top of one and the bottom of the other.. then wires going to each other to complete the current

wow, that looks amazing!
THANKS!
how high have you taken it
only combustion so far
is that union sch80 or metal?
sch 80 metal hehe
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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ShowNoMercy
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Mon Jun 11, 2007 5:53 pm

How did you attach the union the the tank? Is it a welded fitting or a pre exsiting one? And why is it called what it is?
Jesus saves, no need to pray
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It seems you've lost your way
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spudthug
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Mon Jun 11, 2007 5:59 pm

How did you attach the union the the tank?
silver solder and jbweld for extra strength
why is it called what it is?
no apparent reason at all..i couldnt think of a name and i used hammered black for my paint job..
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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jrrdw
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Mon Jun 11, 2007 6:01 pm

You know, i'm probly just missing them, but i have yet to see a hybird connon on video in action, like i said i'm probly just missing them, total bummer for me!

I'm wondering if wiring the spark plugs in a series robs the trailing spark plug of some power??? Do you have a digetal muti tester with a high voltage plug in?
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spudthug
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Mon Jun 11, 2007 6:27 pm

idk if it robs the power..but who cares hehe.. atleast it works and i still have alot of gap before it goes short circuiting on me. but oh well it works..
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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hi
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Mon Jun 11, 2007 6:31 pm

do you have a bike pump you can use to test it?
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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iPaintball
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Mon Jun 11, 2007 6:54 pm

Where did you get that cool meter pipe from?
Summer Projects:
CO2 tank hybrid: Gotta fix the meter :(
Cane gun: Needs a pilot/fill setup
1.5" piston valve gun: Almost done
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experament-u2
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Mon Jun 11, 2007 6:55 pm

thats sick
what are you using for burst disks?
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Velocity
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Mon Jun 11, 2007 7:37 pm

Nice hybrid... though, your barrel could be a LOT longer. Right now, your chamber to barrel ratio is around 13:1; a good hybrid chamber to barrel ratio is 0.3:1...
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Fnord
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Mon Jun 11, 2007 8:30 pm

I've been waiting for this :)

Its always good to login and see another hybrid posted.
You might end up going supersonic with a longer barrel and a high mix(evbec calc'd 1200fps with a 144" @4x)
Anyway, everything looks really clean and sturdy. If I had to complain about something I'd say your spark gaps might be more efficient if they were placed near the middle.

Would I get a prize for guessing whos on the tv?
Image
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mark.f
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Mon Jun 11, 2007 8:33 pm

jrrdw wrote: You know, i'm probly just missing them, but i have yet to see a hybird connon on video in action, like i said i'm probly just missing them, total bummer for me!
Then you need to look <a HREF="http://briefcase.yahoo.com/bc/eboyett@p ... /">here</A>.

BTW, nice hybrid! Nice construction.
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spudthug
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Mon Jun 11, 2007 9:17 pm

do you have a bike pump you can use to test it?
its a quick connect..
Where did you get that cool meter pipe from?
i found it in my basement and i have no clue where it came from
what are you using for burst disks?
aluminum foil, pop cans, milk bottles
a good hybrid chamber to barrel ratio is 0.3:1...
what length would my barrel be to get .3 to 1?

thanks for the comment mark!
4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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